1666833333363 has 24 divisors (see below), whose sum is σ = 2764763426880. Its totient is φ = 957033491760.

The previous prime is 1666833333359. The next prime is 1666833333371. The reversal of 1666833333363 is 3633333386661.

It is not a de Polignac number, because 1666833333363 - 2² = 1666833333359 is a prime.

It is a super-2 number, since 2×1666833333363² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1666833333463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 443069181 + ... + 443072942.

It is an arithmetic number, because the mean of its divisors is an integer number (115198476120).

Almost surely, 2^{1666833333363} is an apocalyptic number.

1666833333363 is a deficient number, since it is larger than the sum of its proper divisors (1097930093517).

1666833333363 is a wasteful number, since it uses less digits than its factorization.

1666833333363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886142159 (or 886142156 counting only the distinct ones).

The product of its digits is 22674816, while the sum is 54.

The spelling of 1666833333363 in words is "one trillion, six hundred sixty-six billion, eight hundred thirty-three million, three hundred thirty-three thousand, three hundred sixty-three".